FI3773217T3 - Aligning an x-ray medical imaging device using the frankfurt plane - Google Patents

Aligning an x-ray medical imaging device using the frankfurt plane Download PDF

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FI3773217T3
FI3773217T3 FIEP19714389.4T FI19714389T FI3773217T3 FI 3773217 T3 FI3773217 T3 FI 3773217T3 FI 19714389 T FI19714389 T FI 19714389T FI 3773217 T3 FI3773217 T3 FI 3773217T3
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ray
ray source
imaging system
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cephalometric
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Ari Antikainen
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Palodex Group Oy
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    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4007—Arrangements for generating radiation specially adapted for radiation diagnosis characterised by using a plurality of source units
    • A—HUMAN NECESSITIES
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    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A61B6/035—Mechanical aspects of CT
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0492—Positioning of patients; Tiltable beds or the like using markers or indicia for aiding patient positioning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/06—Diaphragms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/587—Alignment of source unit to detector unit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4452—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being able to move relative to each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4458—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being attached to robotic arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/501—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of the head, e.g. neuroimaging or craniography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry

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Claims (14)

PatenttivaatimuksetPatent Claims 1. Röntgenkuvausjärjestelmä (200) lääketieteellistä kuvausta varten, joka käsit- tää: pylvään (240); yläkannakkeen (250), joka on liitetty pylvääseen; pyörivän osan (220), joka on pyörivästi liitetty yläkannakkeeseen, omaa pyörimisakselin (222) yläkannakkeeseen nähden ja käsittää ensimmäisen röntgenlähteen (224), laserin (263) ja röntgenkuvausilmaisimen (226), jot- ka ensimmäinen röntgenlähde ja röntgenkuvausilmaisin ovat konfiguroitu tuottamaan kuva ainakin pyörivän osan pyörimisliikkeen (R) avulla; kefalometrisen potilastuen (262), joka on konfiguroitu tukemaan kuvatta- vaa potilasta (201), on kiinnitetty pylvääseen ensimmäisellä varrella (260) ja sisältää parin säädettäviä korvatankoja (268), jossa kussakin korvatan- gossa on korvanappi (268A, 268B); jossa laser on konfiguroitu generoimaan (320) lasersäde (LB) ja projisoi- maan (330) lasersäde kiinteään sijaintiin röntgenkuvausilmaisimessa ja jossa kefalometrinen potilastuki on säädettävissä siten, että korvanapit ovat samassa linjassa (340) lasersäteen kanssa, tunnettu siitä, että kiinteä sijainti määritellään röntgenkuvausilmaisimen koh- distusmerkinnöillä, missä kohdistusmerkintöjen taso vastaa potilastuen tuke- man potilaan Frankfurt-tasoa.1. An x-ray imaging system (200) for medical imaging, comprising: a column (240); an upper bracket (250) connected to the column; the rotating part (220), which is rotatably connected to the upper bracket, has an axis of rotation (222) with respect to the upper bracket and comprises a first X-ray source (224), a laser (263) and an X-ray imaging detector (226), which first X-ray source and X-ray imaging detector are configured to produce an image at least rotating by means of part rotation (R); a cephalometric patient support (262) configured to support a patient to be imaged (201) is attached to the post by a first arm (260) and includes a pair of adjustable ear bars (268) each ear bar having an Ear Button (268A, 268B); wherein the laser is configured to generate (320) a laser beam (LB) and project (330) the laser beam to a fixed location on the x-ray detector and wherein the cephalometric patient support is adjustable such that the ear buttons are aligned (340) with the laser beam, characterized in that the fixed location is defined by the x-ray detector with alignment markings, where the level of alignment markings corresponds to the Frankfurt level of the patient supported by patient support. 2. Patenttivaatimuksen 1 mukainen röntgenkuvausjärjestelmä, joka lisäksi käsit- tää: toisen röntgenlähteen (265), joka on kiinnitetty pylvääseen toisen varren (261) avulla ja sisältää röntgensäteen rajoituslaitteen (267), jossa toinen röntgenlähde on asetettu generoimaan röntgensäde ja yhdessä röntgen- kuvausilmaisimen kanssa tuottamaan kefalometrinen kuva; ja ohjaimen (270), joka on konfiguroitu ohjaamaan toisen röntgenlähteen skannausliikettä (S) ja korkeusliikettä (Zc).2. The x-ray imaging system according to claim 1, which further comprises: a second x-ray source (265) which is attached to the column by means of a second arm (261) and contains an x-ray beam limiting device (267), where the second x-ray source is set to generate an x-ray beam and together with an x-ray detector to produce a cephalometric image; and a controller (270) configured to control the scanning movement (S) and the elevation movement (Zc) of the second x-ray source. 3. Patenttivaatimuksen 2 mukainen röntgenkuvausjärjestelmä, jossa pyörivä osa käsittää kefalometrisen kollimaattorin (266), joka on konfiguroitu kollimoimaan toisesta röntgenlähteestä tuleva röntgensäde kefalometrisen kuvauksen aika- na, ja pyörivä osa on konfiguroitu asettuvaksi kefalometrisen potilastuen ylä- puolelle kiertoliikkeen (P) avulla.3. The X-ray imaging system according to claim 2, wherein the rotating part comprises a cephalometric collimator (266) configured to collimate the X-ray beam coming from the second X-ray source during the cephalometric imaging, and the rotating part is configured to be positioned above the cephalometric patient support by means of rotation (P). 4. Patenttivaatimuksen 2 mukainen röntgenkuvausjärjestelmä, jossa toisen rönt- genlähteen pyörimisakseli (264) kulkee toisen röntgenlähteen fokaalipisteen läpi.4. The x-ray imaging system according to claim 2, wherein the rotation axis (264) of the second x-ray source passes through the focal point of the second x-ray source. 5. Patenttivaatimuksen 2 mukainen röntgenkuvausjärjestelmä, jossa toinen rönt- genlähde on konfiguroitu skannaamaan potilasta toiseen röntgenlähteeseen kiinnitetyn röntgensäteen rajoituslaitteen ja skannausliikkeen (S) avulla ja röntgenkuvausilmaisin on konfiguroitu liikkumaan synkronisesti toisen röntgen- lähteen kanssa pyörimis-, lineaari- ja kiertoliikkeiden (R, L, P) kefalometrisen kuvauksen aikana. 5. The x-ray imaging system according to claim 2, wherein the second x-ray source is configured to scan the patient by means of an x-ray limiting device attached to the second x-ray source and the scanning movement (S), and the x-ray detector is configured to move synchronously with the second x-ray source through rotational, linear and rotational movements (R, L, P) during cephalometric imaging. 6 Patenttivaatimuksen 1 mukainen röntgenkuvausjärjestelmä, joka lisäksi käsit- tää ohjaimen (270) ja kameran (277), jotka ovat konfiguroitu kohdistamaan ensimmäisen röntgenlähteen generoima lasersäde kiinteään sijaintiin röntgen- kuvausilmaisimessa.The x-ray imaging system according to claim 1, further comprising a controller (270) and a camera (277) configured to direct the laser beam generated by the first x-ray source to a fixed position in the x-ray detector. 7. Patenttivaatimuksen 1 mukainen röntgenkuvausjärjestelmä, jossa ensimmäi- nen röntgenlähde ja röntgenkuvausilmaisin ovat konfiguroitu tuottamaan tieto- konetomografiakuva, kun röntgenkuvausilmaisin on kiinnitetty pyörivään osaan, ja pyörivä osa on konfiguroitu asemoitavaksi tietokonetomografiaku- vauksen aikana ainakin yhden pyörimis-, lineaari- ja kiertoliikkeistä (R, L, P) avulla. 7. The x-ray imaging system according to claim 1, wherein the first x-ray source and the x-ray detector are configured to produce a computed tomography image when the x-ray detector is attached to the rotating part, and the rotating part is configured to be positioned during the computed tomography imaging by at least one of rotational, linear, and rotational movements (R, L, P) using. 8 Patenttivaatimuksen 1 mukainen röntgenkuvausjärjestelmä, joka lisäksi käsit- tää: toisen röntgenlähteen (265), joka on kiinnitetty röntgenkuvausjärjestel- mään toisen varren (261) avulla, ja ohjaimen (270), joka on konfiguroitu ohjaamaan toisen röntgenlähteen skannausliikettä (S) ja korkeusliikettä (Zc).The x-ray imaging system according to claim 1, further comprising: a second x-ray source (265) attached to the x-ray imaging system by means of a second arm (261), and a controller (270) configured to control the scanning movement (S) and height movement ( Zc). 9. Patenttivaatimuksen 8 mukainen röntgenkuvausjärjestelmä, jossa pyörivä osa käsittää ensimmäisen röntgenlähteen, laserin, röntgenkuvausilmaisimen ja ke- falometrisen kollimaattorin (266), joka on konfiguroitu kollimoimaan toisesta röntgenlähteestä tuleva röntgensäde kefalometrisen kuvauksen aikana, ja pyörivä osa on konfiguroitu asemoitavaksi kefalometrisen potilastuen yläpuo- lelle kiertoliikkeen (P) avulla.9. The x-ray imaging system according to claim 8, wherein the rotating part comprises a first x-ray source, a laser, an x-ray detector and a cephalometric collimator (266) configured to collimate an x-ray beam from the second x-ray source during cephalometric imaging, and the rotating part is configured to be positioned above the cephalometric patient support during rotation (P) with the help of 10. Patenttivaatimuksen 8 mukainen röntgenkuvausjärjestelmä, jossa toisen rönt- genlähteen pyörimisakseli (264) kulkee toisen röntgenlähteen fokaalipisteen läpi.10. The x-ray imaging system according to claim 8, wherein the rotation axis (264) of the second x-ray source passes through the focal point of the second x-ray source. 11. Patenttivaatimuksen 8 mukainen röntgenkuvausjärjestelmä, jossa toinen rönt- genlähde on konfiguroitu skannaamaan potilasta toiseen röntgenlähteeseen kiinnitetyn röntgensäteen rajoituslaitteen (267) ja skannausliikkeen (S) avulla ja röntgenkuvausilmaisin on konfiguroitu liikkumaan synkronisesti toisen rönt- genlähteen kanssa pyörimis-, lineaari- ja kiertoliikkeiden (R, L, P) avulla kefa- lometrisen kuvauksen aikana.11. The x-ray imaging system according to claim 8, wherein the second x-ray source is configured to scan the patient by means of the x-ray beam limiting device (267) attached to the second x-ray source and the scanning movement (S) and the x-ray detector is configured to move synchronously with the second x-ray source in rotational, linear and rotational movements (R , L, P) during cephalometric imaging. 12. Patenttivaatimuksen 1 mukainen röntgenkuvausjärjestelmä, jossa ohjain (270) ja kamera (277) ovat konfiguroitu kohdistamaan ensimmäisen röntgenlähteen generoima lasersäde kiinteään sijaintiin röntgenkuvausilmaisimessa.12. The x-ray imaging system according to claim 1, wherein the controller (270) and the camera (277) are configured to direct the laser beam generated by the first x-ray source to a fixed position in the x-ray detector. 13. Patenttivaatimuksen 1 mukainen röntgenkuvausjärjestelmä, jossa ensimmäi- nen röntgenlähde ja röntgenkuvausilmaisin ovat konfiguroitu tuottamaan tieto- konetomografiakuva, kun röntgenkuvausilmaisin on kiinnitetty pyörivään osaan, ja pyörivä osa on konfiguroitu asemoitavaksi tietokonetomografiaku- vauksen aikana ainakin yhden pyörimis-, lineaari- ja kiertoliikkeistä (R, L, P) avulla.13. The x-ray imaging system according to claim 1, wherein the first x-ray source and the x-ray detector are configured to produce a computed tomography image when the x-ray detector is attached to the rotating part, and the rotating part is configured to be positioned during the computed tomography imaging of at least one of rotational, linear, and rotational movements (R, L, P) using. 14. Menetelmä (300) röntgenkuvausjärjestelmän (200) kalibroimiseksi, joka järjes- telmä sisältää pylvään (240), yläkannakkeen (250), joka on liitetty pylvääseen,14. A method (300) for calibrating an x-ray imaging system (200), the system including a column (240), an upper bracket (250) connected to the column, pyörivän osan (220), joka on pyörivästi liitetty yläkannakkeeseen, omaa pyö- rimisakselin (222) yläkannakkeeseen nähden ja käsittää röntgenlähteen (224), laserin (263) ja röntgenkuvausilmaisimen (226), jossa menetelmässä asemoidaan (310) pyörivä osa ensimmäisellä varrella (260) pylvääseen kiinnitetyn potilastuen (262) yläpuolelle, joka potilastuki sisältää potilas- kontaktin (268, 268A, 268B, 269); generoidaan (320) lasersäde (LB) laserista; projisoidaan (330) lasersäde kiinteään sijaintiin röntgenkuvausilmaisimes- sa ja säädetään (340) potilastukea kohdistamalla potilaskontakti lasersätee- seen, tunnettu siitä, että kiinteä sijainti määritellään röntgenkuvausilmaisimen koh- distusmerkinnöillä, missä kohdistusmerkintöjen taso vastaa potilastuen tuke- man potilaan Frankfurt-tasoa.the rotating part (220), which is rotatably connected to the upper bracket, has an axis of rotation (222) with respect to the upper bracket and comprises an X-ray source (224), a laser (263) and an X-ray imaging detector (226), in which the method positions (310) the rotating part on the first arm (260 ) above the patient support (262) attached to the column, which patient support includes the patient contact (268, 268A, 268B, 269); generating (320) a laser beam (LB) from the laser; projecting (330) the laser beam to a fixed position in the x-ray detector and adjusting (340) the patient support by aligning the patient contact with the laser beam, characterized in that the fixed position is defined by the alignment markings of the x-ray detector, where the level of the alignment markings corresponds to the Frankfurt level of the patient supported by the patient support.
FIEP19714389.4T 2018-04-05 2019-03-27 Aligning an x-ray medical imaging device using the frankfurt plane FI3773217T3 (en)

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